Independent software · Trest Line OÜ

Focused tools for work that deserves a reliable record.

Trest Line builds practical software with clear boundaries, durable workflows, and no unnecessary account or tracking layer.

Products

Focused products. Clear boundaries.

iPhone · Local-first

FinishTrace

Turn physical wood-finish samples into a traceable path from test and comparison to approval, QR labeling, and later reproduction.

Test → Compare → Approve → Reproduce
Deterministic batch calculator
No developer cloud or tracking

Explore FinishTrace Open calculator

01Test

02Compare

03Approve

04Reproduce

iPhone · Beauty business

Marginelle

A calm, ranked audit of each service’s estimated owner return after the time, consumables, percentage costs, and weekly overhead you enter.

Whole-menu target-gap ranking
User-entered plan with immutable before/after
Complete three-service audit free

Explore Marginelle Support

Your hourly target$50.00Signature facial $68/hrGel manicure $46/hrColor refresh $39/hr

Company

Trest Line OÜ

Trest Line OÜ is the legal developer and provider of the products published on this site. Product-specific support, privacy, and terms pages remain available inside each product section.

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